Malicious PDF — malware analysis report

Static analysis result for SHA-256 63cac42f13060501…

MALICIOUS

PDF

43.0 KB Created: 2021-05-19 10:41:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 38a81732e600ee844bde32d83738fc58 SHA-1: f05038ef9aff70b1019efef4f296e12baca3e6fd SHA-256: 63cac42f13060501d56bd6d76ff13263721e356eb6448d8f3d38c6e38e47f9ef
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple links to external websites, with a primary URL identified as a lure for game hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of game-related lures suggests a social engineering tactic to drive users to potentially malicious sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/1330123889/pubg-uc-buy-cheap-game-hack PDF link annotation
    • http://www.inoxograde.hr/files/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • http://www.inoxograde.hr/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://www.inoxograde.hr/files/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/coin-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004686.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4686 28108 bytes
SHA-256: d177700b6e34c3b2b99f04487de312e90fa79094d663d24f26b898617d8de7f0
font_01_sfnt_off0000849e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849E 18648 bytes
SHA-256: 4acc18fe7a00521a3824ec71434aec5e7fc6f5eb36fa4d750a26abd37ecbcb4a

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